Emulsion composition and cosmetics containing the composition

Abstract

The present invention provides a polyorganosiloxane-rich emulsion composition that has low viscosity, is easy to handle, and does not easily cause viscosity reduction when incorporated into high-viscosity cosmetics such as high-viscosity treatment agents. [Solution] The emulsion composition comprises, per 100% by mass of the emulsion composition, (A) 65% to 90% by mass of a polyorganosiloxane mixture having a viscosity of 100 Pa·s or more, (B) 2% to 6% by mass of a surfactant, and (C) 5% to 34% by mass of water.

Description

[Technical Field]

[0001] This disclosure relates to emulsion compositions and cosmetics containing such compositions. [Background technology]

[0002] In recent years, there has been an increase in hair cosmetic formulations that incorporate high concentrations of highly polymerized silicones to achieve superior conditioning effects. However, silicone emulsions contain a large amount of water, and incorporating them in high concentrations into treatments has led to a problem of reduced viscosity. While emulsions with a high silicone content can reduce water content, high silicone concentrations result in high emulsion viscosity, making them difficult to handle during manufacturing.

[0003] Patent Document 1 discloses an organosilicone emulsion composition in which the stability of the emulsion is improved by using a high-viscosity polyorganosiloxane and a polyether group-containing organosiloxysilicate in combination. Its intended use is limited to surface coatings, release agents, lubricants, and polishing agents for various substrates.

[0004] Patent Document 2 discloses an oil-in-water emulsion composition for hair cosmetics containing polyorganosiloxane as an oily component, which has excellent storage stability. However, the viscosity range of the oil differs, and while it mentions the stability of the emulsion, there is no description regarding the decrease in viscosity of the treatment agent.

[0005] Patent Document 3 discloses a hair care product comprising oil-in-water emulsion A and oil-in-water emulsion C. Patent Document 4 discloses an oil-in-water silicone emulsion composition that can be used as a raw material for hair cosmetics such as shampoos and conditioners, skin cosmetics such as creams and lotions, and even as a base for pharmaceuticals such as ointments. Patent Documents 3 and 4 disclose examples of emulsions with a low silicone content. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Patent No. 6233037 [Patent Document 2] Japanese Patent Publication No. 2012-77282 [Patent Document 3] Special Publication No. 2017-519005 [Patent Document 4] Japanese Patent Application Publication No. 11-140317 [Overview of the project] [Problems that the invention aims to solve]

[0007] This disclosure provides a high-viscosity polyorganosiloxane-rich emulsion composition that has low viscosity, is easy to handle, and does not easily cause viscosity reduction even when incorporated in high concentrations into high-viscosity cosmetics such as high-viscosity treatment agents. [Means for solving the problem]

[0008] The emulsion composition of this disclosure is, based on 100% by mass of the emulsion composition, (A) A polyorganosiloxane mixture comprising 65% to 90% by mass, wherein the polyorganosiloxane mixture has a viscosity of 100 Pa·s or more, (B) 2% to 6% by mass of surfactant, (C) 5% to 34% by mass of water, Includes, The aforementioned component (A) is, (A-1) 95 to 5 parts by mass of one or more polyorganosiloxanes per 100 parts by mass of the polyorganosiloxane mixture, one or more (low viscosity) polyorganosiloxanes having a viscosity of 2 to 100 mPa·s at 25°C, (A-2) 5 to 95 parts by mass of polyorganosiloxane per 100 parts by mass of the polyorganosiloxane mixture, wherein the viscosity at 25°C is 1 × 10⁻⁶ 4 ~1 × 10 8 (High viscosity) polyorganosiloxane and (Only) is included.

[0009] With respect to 100 parts by mass of the low-viscosity polyorganosiloxane of component (A-1), the high-viscosity polyorganosiloxane of component (A-2) may be 40 to 70 parts by mass, preferably 45 to 65 parts by mass, more preferably 50 to 60 parts by mass. When the high-viscosity polyorganosiloxane exceeds 70 parts by mass, the viscosity may be too high, and the mechanical force for emulsification may be insufficient, resulting in insufficient emulsification. On the other hand, when the high-viscosity polyorganosiloxane is less than 40 parts by mass, the conditioning force of the resulting emulsion is insufficient.

[0010] The polyorganosiloxanes of the components (A-1) and (A-2) may be represented by the formula (1). R 1 a SIO (4-a) / 2 ···(1) [In the formula, R 1 is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, or a hydroxyl group, and a is 1.7 to 2.3]

[0011] The surfactant of the component (B) is, based on 100% by mass of the emulsion composition, 2% to 6% by mass of one or more nonionic surfactants (B-1), or preferably contains 2% to 6% by mass of polyoxyethylene hydrogenated castor oil ester or polyoxyethylene hydrogenated castor oil ether (B-2).

[0012] The nonionic surfactant (B-1) may be represented by the formula (2).

Chemical formula

[0013] The polyoxyethylene hydrogenated castor oil ester or polyoxyethylene hydrogenated castor oil ether (B-2) may be represented by the formula (3).

Chem.

[0014] The emulsion composition may further contain 2% to 15% by mass of (D) an emulsification aid with respect to 100% by mass of the emulsion composition.

[0015] The emulsification aid may be composed of any one or more of the formulas (4.1) to (7.2). C3H8O3(4.1) Molecular weight: 92.09

Chem.

[0016] 1,3 - Butylene glycol C4H 10 O2(5.1) Molecular weight: 90.1

Chem.

[0017] Diglycerin C6H 14 O5(6.1) Molecular weight: 166.17

Chem.

[0018] Propylene glycol C3H8O2(7.1) Molecular weight: 76.09

Chem.

[0019] The viscosity of the emulsion composition may be determined by any one or more of the following conditions: At 25°C, with a shear rate of 4 (1 / s), the pressure is 25,000 mPa·s or less. At 25℃ and a shear rate of 10¹ / s, the pressure is 5,000 to 15,000 mPa·s. At 25°C and a shear rate of 20 (1 / s), the pressure ranges from 2,000 to 10,000 mPa·s. Meeting the above conditions improves the manufacturability of the emulsion and enhances its handling and stability when incorporated into cosmetics.

[0020] The emulsion composition may be an emulsion composition for cosmetic use. The viscosity of cosmetics containing the emulsion composition is higher than that of cosmetics without the emulsion composition, preferably 1.1 times or more, and more preferably 1.2 times or more. The upper limit of viscosity varies depending on the usage conditions, but for example, it may be 2 times or less, 2.1 times or less, 2.2 times or less, 2.5 times or less, or 3 times or less than the viscosity of cosmetics without the emulsion composition.

[0021] The emulsion composition is preferably incorporated into a hair conditioner. Hair conditioner is a concept that includes rinse, conditioner, and treatment. Rinse and conditioner repair the cuticles on the surface of the hair, giving it smoothness. Hair mask is a type of treatment that is excellent for repairing damage from within the hair. Hair treatment moisturizes and repairs the hair from the inside.

[0022] The viscosity of hair conditioner is, for example, 5,000 to 150,000 mPa·s, the viscosity of conditioner treatment is, for example, 20,000 to 60,000 mPa·s, and the viscosity of hair mask is, for example, 80,000 to 150,000 mPa·s.

[0023] The high-viscosity hair conditioner containing the emulsion composition may have viscosity levels of, for example, 0.75, 0.8, 1.0, 1.5, 1.8, 2, or 2.5 times or less, relative to the viscosity of a hair conditioner without the emulsion composition (1x).

[0024] The emulsion composition is formulated, for example, in a hair conditioner, so that the silicone content is 10% to 20%, preferably 11% to 19%, more preferably 12% to 18%, even more preferably 13% to 17%, and particularly preferably 14% to 16%.

[0025] (Effects and Benefits) (1) The emulsion composition according to the present invention has a high viscosity and is easy to handle, despite containing a high amount of high viscosity polyorganosiloxane. (2) When added to a base material such as a hair conditioner, it is less likely to cause a decrease in the viscosity of the base material, and despite being an emulsion, it can suppress the decrease in viscosity to the same level as when oil is added directly. For this reason, it is useful, for example, as an emulsion composition for hair cosmetics. (3) Because it is an emulsion composition, it is easy to stir and handle even when high-viscosity silicone is added. [Brief explanation of the drawing]

[0026] [Figure 1] This figure shows an example of the viscosity of a conditioner. [Modes for carrying out the invention]

[0027] The details of the emulsion composition according to the present invention are described below.

[0028] (Emulsion composition) The emulsion composition is a highly concentrated emulsion of high-viscosity polyorganosiloxane. This emulsion composition can be easily incorporated into cosmetics to obtain desired high-viscosity cosmetics. The components of the emulsion composition are described in detail below.

[0029] (A: Polyorganosiloxane mixture) Component (A) is a polyorganosiloxane mixture. The polyorganosiloxane mixture is present in an amount of 65-90% by mass, preferably 66-85% by mass, and more preferably 68-80% by mass, of 100% by mass of the emulsion composition. The viscosity is 100 Pa·s or higher. The polyorganosiloxane mixture is a mixture of a high-viscosity component and a low-viscosity component.

[0030] The polyorganosiloxane component (A-1) is one or more polyorganosiloxanes in an amount of 95 to 5 parts by mass per 100 parts by mass of the polyorganosiloxane mixture. The polyorganosiloxane component (A-1) has a viscosity at 25°C of 2 to 100 mPa·s, preferably 5 to 50 mPa·s, and more preferably 5 to 20 mPa·s.

[0031] The polyorganosiloxane component (A-2) is 5 to 95 parts by mass of polyorganosiloxane per 100 parts by mass of the polyorganosiloxane mixture. (A-2) One or more polyorganosiloxanes of component (A-2) have a viscosity of 1 × 10 at 25°C. 4 ~1 × 10 8 mPa·s, preferably 1 × 10⁻¹⁰ 5 ~1 × 10 8 mPa·s, fuwa1 × 10 6 ~1 × 10 8 mPa·s, more preferably 5 × 10 6 ~5×10 7 It is mPa·s.

[0032] The low viscosity polyorganosiloxane component (A-1) may be present in an amount of 100 parts by mass, while the high viscosity polyorganosiloxane component (A-2) may be present in an amount of 40 to 70 parts by mass, preferably 45 to 65 parts by mass, and more preferably 50 to 60 parts by mass.

[0033] The polyorganosiloxanes of components (A-1) and (A-2) can be used individually or in appropriate combinations of two or more.

[0034] The molecular structures of components (A-1) and (A-2) are not particularly limited and may be, for example, linear structures, partially branched linear structures, branched linear structures, cyclic structures, or branched cyclic structures. Of these, components (A-1) and (A-2) are preferably substantially linear polyorganosiloxanes, and more specifically, the molecular chain may consist mainly of repeating diorganosiloxane units, with both ends of the molecular chain sealed by triorganosiloxy groups, forming a linear diorganosiloxane. Some or all of the ends of the molecular chain, or some of the side chains, may be silanol groups.

[0035] Furthermore, components (A-1) and (A-2) may be polymers consisting of a single siloxane unit, or copolymers consisting of two or more siloxane units.

[0036] Specifically, the average empirical formulas of components (A-1) and (A-2) are represented by the following general formula (1). R 1 a SiO (4-a) / 2 (1) (However, in equation (1), R 1 These are identical or different substituted or unsubstituted monovalent hydrocarbon groups or hydroxyl groups having 1 to 20 carbon atoms. a is 1.7 to 2.3. Furthermore, a is preferably 1.8 to 2.2, and more preferably 1.95 to 2.15.

[0037] In one embodiment, the above R 1 The monovalent hydrocarbon group shown may basically consist of a methyl group. Also, all R 1 It is preferable that 70 mol% or more of the emulsion consists of methyl groups, in terms of the physical properties and economic efficiency of the emulsion composition, and typically, emulsions with 90 mol% or more of methyl groups are used. In the above formula, R 1These are identical or different monovalent hydrocarbon groups having 1 to 20 carbon atoms, such as alkyl groups like methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, dodecyl, tetradecyl, hexadecyl, octadecyl, cyclopentyl, and cyclohexyl groups; aryl groups like phenyl, tolyl, and naphthyl groups; alkenyl groups like vinyl and allyl; or groups in which some of the hydrogen atoms in these monovalent hydrocarbon groups are replaced with halogen atoms or polar organic groups such as amino, acryloxy, methacryloxy, epoxy, mercapto, and carboxyl groups. Among these, it is desirable that 90 mol% or more be methyl groups.

[0038] These polyorganosiloxanes may be commercially available or manufactured by methods known to those skilled in the art.

[0039] (B: Surfactant) (B-1) One of the surfactants is a nonionic surfactant. The amount of one or more nonionic surfactants is 2% to 6% by mass, more preferably 3% to 6% by mass, based on 100% by mass of the emulsion composition.

[0040] Nonionic surfactants are represented by formula (2). [ka] R 2 (OC2H4)bOH ···(2) [In the formula, R 2 [b is an alkyl group with 15 or more carbon atoms, b is 17 or less]

[0041] Nonionic surfactants have a linear structure, with a main chain having 15 or more carbon atoms, and EO chains (polyoxyethylene chains) having 13 to 17, preferably 14 to 17, more preferably 15 to 17, and even more preferably 16 to 17.

[0042] Examples of nonionic surfactants include polyoxyethylene tridecyl ether, polyoxyethylene cetyl ether, and polyoxyethylene lauryl ether, with polyoxyethylene cetyl ether being preferred.

[0043] One of the surfactants in component (B-2) is polyoxyethylene hydrogenated castor oil ester or polyoxyethylene hydrogenated castor oil ether. The amount of polyoxyethylene hydrogenated castor oil ester or polyoxyethylene hydrogenated castor oil ether is 1% to 6% by mass, preferably 2% to 6% by mass, and more preferably 3% to 6% by mass, based on 100% by mass of the emulsion composition.

[0044] Polyoxyethylene hydrogenated castor oil ester or polyoxyethylene hydrogenated castor oil ether is represented by formula (3). [ka] ...(3) x+y+z+l+m+n is between 60 and 300, where l≧0, m≧0, and n≧0.

[0045] (C:Water) The type of water is not particularly limited, but examples include tap water, purified water, distilled water, pure water, and ion-exchanged water, and it is preferable to use ion-exchanged water.

[0046] (D: Emulsifying agent) While emulsifying agents are not particularly essential components, their inclusion can help stabilize the emulsion. The emulsion composition contains 2% to 15% by mass, preferably 3% to 12% by mass, of the emulsifying agent per 100% by mass of the emulsion composition.

[0047] The emulsifying agent may consist of one or more of the formulas (4.1) to (7.2). C3H8O3(4.1) Molecular weight:92.09 [ka] (4.2)

[0048] 1,3-Butylene glycol C4H 10 O2(5.1) Molecular weight: 90.1 [ka] (5.2)

[0049] Diglycerin C6H 14 O5(6.1) Molecular weight: 166.17 [ka] (6.2)

[0050] Propylene glycol C3H8O2(7.1) Molecular weight: 76.09 [ka] (7.2)

[0051] Examples of emulsifying agents include glycerin, polyethylene glycol, diglycerin, butylene glycol, and propylene glycol. One or more emulsifying agents may be included.

[0052] The emulsion composition of the present invention may further contain conventionally known additives as additional optional components other than components (A) to (D) above, to the extent that the objectives of the present invention are not impaired. Examples of such additives include pigments, dyes, antistatic agents, preservatives, stabilizers, fungicides, polymerization initiators, antioxidants, and pH adjusters. These additional optional components may be used individually or in combination of two or more.

[0053] (Method for manufacturing emulsion) The method for producing the emulsion composition is: (S1) A step of mixing a low-viscosity polyorganosiloxane and a high-viscosity polyorganosiloxane to obtain a polyorganosiloxane mixture, (S2) The step of mixing a polyorganosiloxane mixture, a surfactant, and water to obtain an emulsion composition. Step (S2) may further include and mix in emulsifying agents and / or additives (e.g., preservatives, stabilizers, etc.). Mixing may be carried out using, for example, a planetary mixer, a stirrer, or an emulsifying stirrer. When mixing, you may stir while heating.

[0054] (Method of incorporating into cosmetics) The emulsion composition is mixed into the cosmetic product. It is preferable to incorporate and mix the emulsion composition into the cosmetic product so that the silicone content is between 10% and 20%. Mixing may be performed using, for example, a planetary mixer, a stirrer, or an emulsifying stirrer.

[0055] <Examples> Table 1 shows the blending ratios and measurement results for Examples 1-7, which used a linear nonionic surfactant as the surfactant. Table 2 shows the blending ratios and measurement results for Comparative Examples 1-12. The emulsion composition was prepared using the following procedure. (1) A low-viscosity polyorganosiloxane (component (A-2)) and a high-viscosity polyorganosiloxane (component (A-1)) were stirred and mixed in a PRIMIX Hibiscus Disperser Mix 3D-2 to obtain a polyorganosiloxane mixture (component (A)). (2) To 70% by mass of the polyorganosiloxane mixture of component (A), a surfactant corresponding to component (B), a preservative corresponding to component (E), and purified water (component (C)) were added, and the mixture was stirred at 2500 rpm using an IKA ULTRATURRAX T50 basic shaft generator G45G to obtain a silicone emulsion. (3) An emulsifying agent corresponding to component (D) was added, and the mixture was stirred again at 2500 rpm using an ULTRATURRAX T50 basic shaft generator G45G to obtain the desired emulsion composition.

[0056] (Emulsion particle size) The particle size of the emulsion is the average particle size, which is the D50, the 50% particle size in the volume-based cumulative particle size distribution measured with a laser diffraction particle size analyzer (Malvern Zetasizer Lab blue). The same measurement method is used below unless otherwise specified. The median diameter may also be used.

[0057] (viscosity measurement) The viscosity of emulsion compositions or conditioners at 25°C was measured according to JIS K 7117-2. The emulsion composition or conditioner was placed between a 25 mm diameter cone rotated at an angle of 1° or 2° and a fixed plate, and the viscosity was measured using a Physica MR 301 viscometer (manufactured by Anton Paar) at shear rates of 4, 10, and 20 (1 / s) and a gap of 0.106 mm. Viscosity was measured at 120 points at shear rates of 4 (1 / s), 10 (1 / s), and 20 (1 / s), and the average value was calculated. For the conditioner, measurements were performed only at a shear rate of 4 (1 / s).

[0058] The viscosity of the mixture of components A-1 and A-2, the viscosity of the conditioner (original), and the viscosity of the conditioner after the emulsion composition was added were measured. The emulsion-containing conditioner was formulated with an emulsion containing 15% silicone. The percentage change in viscosity from the conditioner before formulation to the conditioner after formulation was calculated using the following formula. A positive value indicates an increase in viscosity, and a negative value indicates a decrease in viscosity. Viscosity change rate (%) = 100 × (Conditioner viscosity after mixing / Conditioner viscosity before mixing - 1)

[0059] [Table 1]

[0060] [Table 2]

[0061] Table 3 shows the conditioner formulations used in the examples and comparative examples. [Table 3]

[0062] <Another comparative example> In Examples 1 to 7, when the surfactant was 1%, the emulsion composition emulsified but remained unstable for a long time and separated. When the surfactant was 0.5%, emulsification did not occur.

[0063] Table 4 shows the formulation ratios and measurement results for Examples 8-11 and Comparative Examples 13-14, in which polyoxyethylene hydrogenated castor oil ether was used as the surfactant.

[0064] [Table 4]

[0065] Table 5 shows the mixing ratio of the conditioner and emulsion composition, the solid content of the emulsion, the viscosity after mixing, the viscosity change rate, and the evaluation results for the gum blend (standard) formulation (using BELSIL GB2170 GUM BLEND manufactured by Asahi Kasei Wacker Silicone Co., Ltd.). For viscosity evaluation, a viscosity of 41.0 Pa·s or higher (conditioner viscosity when gum blend is added) and a positive viscosity change rate were assigned an "A" rating, while a negative viscosity change rate was assigned a "B" rating, both of which were considered acceptable. A viscosity below 41.0 Pa·s was assigned a "C" rating and was considered unacceptable. Table 5 shows that in Examples 1-3 and 8-11, although the emulsion solid content ratio was lower than that of the gum blend (reference), the viscosity of the conditioner after compounding was increased. Figure 1 shows an example of conditioner viscosity.

[0066] [Table 5]

[0067] (Evaluation of the examples) In Examples 1-7 and 8-11, the viscosity of the mixture of component (A-1) and component (A-2) was 100 Pa·s or higher. The viscosity of the emulsion composition met the acceptable standard at shear rates of 4 (1 / s), 10 (1 / s), and 20 (1 / s), due to the appropriate structure and amount of surfactant added. Comparing the viscosities of emulsion compositions from four formulations (Example 3 and Comparative Examples 2, 8, and 12) using surfactants with a linear structure, the viscosity increased in the order of Comparative Example 12, Example 3, Comparative Example 2, and Comparative Example 8. Similarly, focusing on the length of the EO chain of the surfactants used in the above four formulations, the length increased in the order of Comparative Example 12, Example 3, Comparative Example 2, and Comparative Example 8. From the above, it can be seen that the viscosity of the emulsion composition tended to decrease as the EO chain length decreased. Examples 8-11 differ in the viscosity of the polyorganosiloxane corresponding to component (A-1). Comparing the viscosity of component (A), Examples 8 and 9 have a viscosity of approximately 100 Pa·s, while Examples 10 and 11 have a viscosity of approximately 300 Pa·s. Comparing the viscosity of the emulsion compositions, Examples 10 and 11 had lower viscosity emulsion compositions. In other words, a higher viscosity of component (A) tended to result in a lower viscosity emulsion composition. Examples 8-11 use bulky surfactants, which increases the particle size and lowers the viscosity of the emulsion composition. Furthermore, the viscosity of the conditioner containing the emulsion composition (measured at a shear rate of 4 (1 / s)) also met the passing standard (41 Pa·s or higher, the viscosity of the conditioner when a gum blend is included). When comparing the viscosity of conditioners containing emulsion compositions of four formulations (Example 3 and Comparative Examples 2, 7, and 8) using surfactants with a linear structure, Example 3 and Comparative Example 2 met the viscosity requirements, but Comparative Examples 7 and 8 did not. Looking at the structure of the surfactants used, Example 3 and Comparative Example 2 had a carbon chain of 16, while Comparative Examples 7 and 8 had carbon chains of 13 and 12, respectively. In other words, using surfactants with longer carbon chains tended to maintain the viscosity of the conditioner.

[0068] (Evaluation of comparative examples) In Comparative Examples 1-3, the viscosity of the mixture of components (A-1) and (A-2) was 100 Pa·s or higher, but the viscosity of the emulsion composition was not within the acceptable limits at both shear rates of 4 (1 / s) and 10 (1 / s). Comparative Example 1 used the same type of surfactant as Example 1, but the amount added was 7% by mass, resulting in an emulsion with smaller particles and thus an unacceptable viscosity. Comparative Examples 2 and 3 had longer EO chains than the surfactant used in Example 1, resulting in unacceptable viscosities. In Comparative Example 4, the viscosity of the mixture of component (A-1) and component (A-2) was not 100 Pa·s or higher, and therefore the viscosity of the emulsion composition did not meet the acceptable standard at a shear rate of 4 (1 / s). In Comparative Examples 5-7, the viscosity of the conditioner containing the emulsion composition (measured at a shear rate of 4 (1 / s)) did not meet the acceptable standard (41 Pa·s or higher) because the carbon chains of the surfactants were short. In Comparative Examples 8 and 9, similar to Comparative Examples 2 and 3, the EO chains of the surfactants were long, resulting in the emulsion compositions not meeting the acceptable viscosity standards at both shear rates of 4 (1 / s) and 10 (1 / s). Furthermore, due to the short carbon chains of the surfactants, the viscosity of the conditioner containing the emulsion compositions (measured at a shear rate of 4 (1 / s)) did not meet the acceptable viscosity standard (41 Pa·s or higher). In comparative examples 10 to 12, the viscosity of the conditioner containing the emulsion composition (measured at a shear rate of 4 (1 / s)) did not meet the acceptable standard (41 Pa·s or higher) because the carbon chains of the surfactants were short. In Comparative Example 13, the amount of surfactant added was 7% by mass, resulting in an emulsion with smaller particles. Consequently, the viscosity of the emulsion composition did not meet the acceptable standard at any of the shear rates of 4 (1 / s), 10 (1 / s), and 20 (1 / s). In Comparative Example 14, the amount of emulsifying agent added was 10%, and the viscosity of the emulsifying agent had a significant impact. As a result, the viscosity of the emulsion composition did not meet the acceptable standard at any of the shear rates of 4 (1 / s), 10 (1 / s), and 20 (1 / s).

Claims

1. For 100% by mass of the emulsion composition, (A) A polyorganosiloxane mixture comprising 65% to 90% by mass, wherein the polyorganosiloxane mixture has a viscosity of 100 Pa·s or more, (B) 2% to 6% by mass of surfactant, (C) 5% to 34% by mass of water, Includes, The aforementioned component (A) is (A-1) 95 to 5 parts by mass of one or more polyorganosiloxanes per 100 parts by mass of the polyorganosiloxane mixture, the polyorganosiloxanes having a viscosity of 2 to 100 mPa·s at 25°C, (A-2) 5 to 95 parts by mass of polyorganosiloxane per 100 parts by mass of the polyorganosiloxane mixture, wherein the viscosity at 25°C is 1 × 10⁻⁶ ４ ~1 x 10 ８ mPa·s polyorganosiloxane and including, Emulsion composition.

2. The emulsion composition according to claim 1, wherein the polyorganosiloxane of component (A) is represented by formula (1). R １ ａ SIO （４－ａ）／２ ・・・(1) [In the formula, R １ [where a is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, or a hydroxyl group, and a is 1.7 to 2.3]

3. The surfactant of component (B) is, in proportion to 100% by mass of the emulsion composition, One or more nonionic surfactants (B-1) in an amount of 2% to 6% by mass, or A compound containing 2% to 6% by mass of polyoxyethylene hydrogenated castor oil ester or polyoxyethylene hydrogenated castor oil ether (B-2), The emulsion composition according to claim 1.

4. The nonionic surfactant (B-1) is represented by formula (2), as described in claim 1. 【Chemistry 1】 R ２ (OC ２ H ４ )bOH ・・・(2) [In the formula, R ２ [b is an alkyl group with 15 or more carbon atoms, b is 17 or less]

5. The polyoxyethylene hydrogenated castor oil ester or polyoxyethylene hydrogenated castor oil ether (B-2) is represented by formula (3), and is the emulsion composition according to claim 1. 【Chemistry 2】 ・・・（３） x + y + z + l + m + n is between 60 and 300, l ≥ 0, m ≥ 0, and n ≥ 0.

6. The emulsion composition is, in proportion to 100% by mass of the emulsion composition, (D) The emulsion composition according to claim 1, further comprising 2% to 15% by mass of an emulsifying agent.

7. The viscosity of the emulsion composition is At 25°C, with a shear rate of 4 (1 / s), the pressure is 25,000 Pa·s or less. At 25°C and a shear rate of 10 (1 / s), the pressure ranges from 5,000 to 15,000 Pa·s, and The emulsion composition according to claim 1, wherein at 25°C and a shear rate of 20 (1 / s), the pressure is one or more combinations of 2,000 to 10,000 Pa·s.

8. The emulsion composition according to claim 1, wherein the emulsion composition is an emulsion composition for cosmetic use.

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